Improved mosquito-bar foe windows



C. T. WARREN. MOSQUITO BAR FOR WINDOW.

No.79,419. Patented June 30, 1868.

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Letters Patent No. 79,419, dated June 30, 1868.

IMPROVED MOSQUITO-BAR FOR WINDOWS.

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aro- ALL WHOM IT MAY CONCERN:

Be it known that I, C.;T. WARREN, of =Linden, iu the eounty of Union,and State of New Jersey, have invented a new and useful Improvement inWindow Mosquito-Bar; and I do herebydeclarethat the following is afull,clear, and exact description thereof, whichwill enable those skilled inthe art to make and use the same, reference being'had to theaccompanying drawings, forming part of this specification.

This invention relates to the manner in which mosquito-bar gauze ornetting is operated so as to prevent the entrance of those pests into aroom through the windows.

And it consists in operating the bar, either rolling up or unrolling itby the act. oi raising and lowering the sashes, by means of fixed coriisand rollers, as will hereinafter be more fully described.

Figure 1 is a front view of a window provided with mosquito-bars,operated according to my invention.

Figure 2 is a vertical cross-section of the same through-the line x 2;.

Similar letters of reference indicate corresponding-parts.

A represents the window-frame or casing.

B-is thelowr sash, and

C is the upper'sash.

To the bottom of the lower sash and to the top of the upper sash,rollers, d, are attached by plates-e, which are screwed on to the edgeof the sashes, as seen in fig. 1.

In this figure the upper sash is seen down, and the netting. F unrolled.

The rollers dare let into the sashes (more or less) by grooving thesash-rails, as seen infig 2. To each' eudlof the rollers there ,is-apulley, g. Y

2' represents cords, which are attached to'screWs j, fixed,to the casingat the lower end. These cords 'may pass through the casing and beattached together at their other ends, as seen in the drawing, orfastened sepa ,rately, as may be most desirable.

As seen in the drawing, the cords are passed once around the pulleys, sothat the act of raisingor lowering the sash revolvesthc roller-and rollsup'orfunrolls the bar or netting.

The pulleys on the roller may be of different diameters, so that onewill revolve faster than the other, for the purpose of taking upanyslack in the netting, and they may be so arranged that one pulleywill revolve the roller when the sash is raised, and the other revolveitwhen it is lowered but in either case the cord would pass over thepulleys in the same manner, and be revolved on stationary cords,as-shown and described.

It will be seen that by this arrangement the space for either the upperor lower sash is effectually barred and protected. from mosquitoes whenthey are raised or lowered.

The diiiiculty of adjusting separate mosquito-bar frames for each sashis entirely obviated.

. When my mosquito-bars are once attached to the window, they canremaimwithoutrequiring any attention.

There are .no springs or weights, and the action is entirely automatic,as regards the rolling and unrolling of. the bar.

I claim as new, and desire to secure by Letters Patent 1. Rolling anduurolling the mosquito-netting by the movement of the sash carrying theroller d upon the ord 2', substantially as described, for the purposespecified.

2. The mosquito-bar or netting, operated as described, by means of therollers attached to the sashes, the pulleys 9, cards 2', and screws j,substantially as described, for the purpose specified.

The above specification of my invention signed by' me, this 22d day o fMay, 1868.

- C. T. WARREN. Witnesses:

FRANK BLoeKL-EY, ALEX. F. Ronnnrs.

